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Performance of Leakage Based Precoding Scheme for Minimizing Interference

Subuh Pramono 1, Eddy Triyono 2, and Budi Basuki Subagio2
1. Department of Electrical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
2. Department of Electrical Engineering, Politeknik Negeri Semarang, Semarang 50275, Indonesia
Abstract—In this paper, we consider the performance of leakage based linear precoding scheme in downlink multiuser MIMO. This work focuses on minimizing the interference to improve the performance system. The proposed leakage based linear precoding will be investigated in term of bit error rate (BER), sum rate capacity and outage. Simulation results show that the leakage based linear precoding scheme (MMSE SLNR and BD SLNR) achieved better BER, higher sum rate capacity, and lower outage than non-leakage precoding scheme (BD). At specific 10 dB SNR, there are 2.3 10-3 and 1.8 10-2 of target BER for MMSE SLNR and BD SLNR, respectively. Furthermore, the MMSE SLNR yields a lower outage than BD SLNR, at specific 2 dB SINR, the probability of an outage is 0.65 for MMSE SLNR and 0.86 for BD SLNR. Overall, the MMSE has better performance than BD SLNR because it has capabilities to eliminate the IUI and ISI.
 
Index Terms—Leakage based precoding, MMSE SLNR, BD SLNR, BER-outage, sum-rate

Cite: Subuh Pramono, Eddy Triyono, and Budi Basuki Subagio, “Performance of Leakage Based Precoding Scheme for Minimizing Interference,”Journal of Communications vol. 15, no. 2, pp. 214-220, February 2020. Doi: 10.12720/jcm.15.2.214-220
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